The Effect of Risk Factors on the Levels of Chemical Elements in the Tibial Plateau of Patients with Osteoarthritis following Knee Surgery

Table 1

Effect of gender on mean values of chemical contents in human tibial plateau from patients after knee surgery (mg/kg dm).

	K	Zn	Mn	Fe	Sr	Se	THg	Pb	Cd	F^−
Female ()
AM ± SD	446.80 ± 138.97	98.79 ± 14.15	0.30 ± 0.21	55.98 ± 39.44	45.30 ± 18.59	0.04 ± 0.01	0.005 ± 0.007	1.50 ± 0.69	0.04 ± 0.03	634.54 ± 379.85
Med.	405.22	96.15	0.23	35.17	44.63	0.04	0.0018	1.53	0.03	513.16
Range	295.69–881.57	76.73–129.09	0.08–0.81	12.73–142.97	25.15–116.82	0.02–0.06	0.0007–0.03	0.35–2.91	0.01–0.13	238.40–1815.18
QL–QU	344.48–505.98	89.21–103.70	0.15–0.37	28.46–69.95	34.08–48. 89	0.03–0.05	0.001–0.006	0.96–1.94	0.02–0.05	330.08–893.84
Male ()
AM ± SD	514.20 ± 157.67	99.12 ± 8.33	0.34 ± 0.30	62.14 ± 38.97	41.6 ± 9.90	0.04 ± 0.02	0.0043 ± 0.003	2.06 ± 1.60	0.06 ± 0.06	569.55 ± 300.49
Med.	455.25	100.55	0.27	49.62	38.65	0.03	0.004	2.06	20.04	449.31
Range	355.04–831.41	89.36–110.82	0.11–0.99	22.51–142.14	34.10–69.73	0.02–0.09	0.001–0.01	1.59–7.28	0.01–0.18	229.30–1153.61
QL–QU	418.73–557.02	89.63–107.9	0.13–0.35	47.41–81.02	34.99–42.88	0.03–0.04	0.002–0.006	1.94–2.60	0.03–0.06	330.96–716.14
Total
AM ± SD	469.90 ± 146.80	98.90 ± 12.37	0.31 ± 0.24	58.03 ± 38.78	44.10 ± 16.10	0.04 ± 0.03	0.005 ± 0.005	1.87 ± 1.18	0.05 ± 0.04	612.87 ± 351.95
Med.	449.20	97.62	0.23	45.75	41.01	0.04	0.003	1.72	0.04	511.46
Range	295.70–881.60	76.73–129.09	0.08–0.99	12.73–142.97	25.15–116.82	0.02–0.09	0.001–0.03	0.35–7.28	0.01–0.18	229.9–1815.18
QL–QU	370.70–513.34	89.63–103.70	0.15–0.36	28.98–69.95	34.99–46.70	0.03–0.04	0.001–0.006	1.34–2.14	0.02–0.05	330.96–874.01
Female versus Male
	NS	NS	NS	NS	NS	NS	NS	48	NS	NS
								0.01

AM: arithmetic mean; SD: standard deviation; Q_L: lower quartile; Q_U: upper quartile; : Mann-Whitney test; : level of significance; NS: nonsignificant difference.